Spring Feign java.lang.IllegalStateException: Ambiguous mapping

问题：

Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'thelook.client.flipcoin.FlipcoinClient' method 
public abstract thelook.client.flipcoin.FlipcoinClient$AllocateResp thelook.client.flipcoin.FlipcoinClient.allocate(int,int)
to {GET /v1/allocate, consumes [application/json;charset=UTF-8], produces [application/json;charset=UTF-8]}: There is already 'thelook.client.facade.FacadeClient' bean method
public abstract thelook.client.facade.FacadeClient$AllocateResp thelook.client.facade.FacadeClient.allocate(java.lang.String,java.lang.String,java.lang.String) mapped.
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.assertUniqueMethodMapping(AbstractHandlerMethodMapping.java:618)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.register(AbstractHandlerMethodMapping.java:586)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod(AbstractHandlerMethodMapping.java:312)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lambda$detectHandlerMethods$1(AbstractHandlerMethodMapping.java:282)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$$Lambda$1107.0000000059D7B820.accept(Unknown Source)
	at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods(AbstractHandlerMethodMapping.java:280)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.processCandidateBean(AbstractHandlerMethodMapping.java:252)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:211)
	at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:199)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:164)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774)
	... 89 more

Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'thelook.client.flipcoin.FlipcoinClient' method

public abstract thelook.client.flipcoin.FlipcoinClient$AllocateResp thelook.client.flipcoin.FlipcoinClient.allocate(int,int)

to {GET /v1/allocate, consumes [application/json;charset=UTF-8], produces [application/json;charset=UTF-8]}: There is already 'thelook.client.facade.FacadeClient' bean method

public abstract thelook.client.facade.FacadeClient$AllocateResp thelook.client.facade.FacadeClient.allocate(java.lang.String,java.lang.String,java.lang.String) mapped.

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.assertUniqueMethodMapping(AbstractHandlerMethodMapping.java:618)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.register(AbstractHandlerMethodMapping.java:586)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod(AbstractHandlerMethodMapping.java:312)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lambda$detectHandlerMethods$1(AbstractHandlerMethodMapping.java:282)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$$Lambda$1107.0000000059D7B820.accept(Unknown Source)

at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods(AbstractHandlerMethodMapping.java:280)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.processCandidateBean(AbstractHandlerMethodMapping.java:252)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:211)

at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:199)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:164)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774)

... 89 more

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月份：2020年3月